EP 1786053 A3 20090128 - Cathode catalyst for fuel cell, method of preparing same, and uses thereof
Title (en)
Cathode catalyst for fuel cell, method of preparing same, and uses thereof
Title (de)
Kathodenkatalysator für Brennstoffzelle, Herstellungsverfahren und Verwendungen davon
Title (fr)
Catalyseur catodique pour pile à combustible, procédé de préparation et ses utilisations
Publication
Application
Priority
KR 20050107972 A 20051111
Abstract (en)
[origin: EP1786053A2] A cathode catalyst for a fuel cell includes an Ru-Se alloy having an average particle size of less than or equal to 6nm. The Ru-Se alloy is preferably an amorphous catalyst. A membrane electrode assembly and a fuel cell system include the cathode catalyst. A catalyst for a fuel cell is prepared by drying a ruthenium solution including a water-soluble ruthenium precursor to obtain a first dried product; subjecting the first dried product to a first heat-treatment to obtain a heat-treated product; adding an Se solution including a water-soluble Se precursor to the heat-treated product to obtain a mixture; drying the mixture to obtain a second dried product including ruthenium and Se; and subjecting the second dried product to second heat-treatment.
IPC 8 full level
B01J 27/057 (2006.01); H01M 4/88 (2006.01); H01M 4/92 (2006.01)
CPC (source: EP KR US)
B01J 23/46 (2013.01 - KR); B01J 27/057 (2013.01 - KR); H01M 4/923 (2013.01 - EP US); H01M 4/926 (2013.01 - EP US); B01J 27/0573 (2013.01 - EP US); H01M 4/8807 (2013.01 - EP US); H01M 4/8817 (2013.01 - EP US); H01M 8/0245 (2013.01 - EP US); H01M 8/1009 (2013.01 - EP US); H01M 8/22 (2013.01 - EP US); Y02E 60/50 (2013.01 - EP); Y02P 70/50 (2015.11 - EP US)
Citation (search report)
- [Y] DE 19644628 A1 19980423 - HAHN MEITNER INST BERLIN GMBH [DE]
- [Y] US 2004096728 A1 20040520 - CAMPBELL STEPHEN A [CA]
- [XY] ALONSO-VANTE N ET AL: "The structure analysis of the active centers of Ru-containing electrocatalysts for the oxygen reduction. An in situ EXAFS study", ELECTROCHIMICA ACTA, ELSEVIER SCIENCE PUBLISHERS, BARKING, GB, vol. 47, no. 22-23, 30 August 2002 (2002-08-30), pages 3807 - 3814, XP004378144, ISSN: 0013-4686
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1786053 A2 20070516; EP 1786053 A3 20090128; EP 1786053 B1 20151007; CN 101183718 A 20080521; CN 101183718 B 20100922; JP 2007134337 A 20070531; JP 5044198 B2 20121010; KR 101223630 B1 20130117; KR 20070050588 A 20070516; US 2007122683 A1 20070531; US 7887972 B2 20110215
DOCDB simple family (application)
EP 06023487 A 20061110; CN 200610063967 A 20061113; JP 2006307209 A 20061113; KR 20050107972 A 20051111; US 59594906 A 20061113